How to close QQ email subscription and SOSO's daily constellation reminder in email?

First log in to your mailbox, click "Settings", and then click the "Mail Subscription" option. The "Subscription Bar" contains the mail options you subscribed to before. Check the previous box and select "Unsubscribe".

SOSO's daily constellation reminder

First log in to your search .. and then search for the constellation you subscribed to before. Then click "Settings" after "Show only the constellations I care about", then remove all tick marks (that is, cancel all tick marks in front of the constellations), and then confirm. ..